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- migliorata gestione textures.
This commit is contained in:
Dario Sassi
2015-10-01 20:48:12 +00:00
parent b839d7ac36
commit 17dc39c758
5 changed files with 105 additions and 39 deletions
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TextureMgr.cpp
+35 -2
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@@ -21,7 +21,6 @@
using namespace std ;
//----------------------------------------------------------------------------
TextureMgr::TextureMgr( void)
{
@@ -42,7 +41,7 @@ TextureMgr::~TextureMgr( void)
//----------------------------------------------------------------------------
bool
TextureMgr::LoadTexture( const string& sName, const string& sFile, double dDimX, double dDimY, bool bRepeat)
TextureMgr::LoadTexture( const string& sName, const string& sFile, double dMMxPix, double dDimX, double dDimY, bool bRepeat)
{
// verifico se immagine già caricata
auto iIter = m_umTextData.find( sName) ;
@@ -93,6 +92,12 @@ TextureMgr::LoadTexture( const string& sName, const string& sFile, double dDimX,
// rendo non corrente questa texture
glBindTexture( GL_TEXTURE_2D, 0) ;
// se dati mm/pixel determino le dimensioni fisiche della texture
if ( dMMxPix > EPS_SMALL && ( dDimX < EPS_SMALL || dDimY < EPS_SMALL)) {
dDimX = dMMxPix * nWidth ;
dDimY = dMMxPix * nHeight ;
}
// salvo i dati
TextureData textData( sFile, dDimX, dDimY, nWidth, nHeight, nTexName, bRepeat) ;
m_umTextData.emplace( sName, textData) ;
@@ -116,6 +121,34 @@ TextureMgr::UnloadTexture( const std::string& sName)
return true ;
}
//----------------------------------------------------------------------------
bool
TextureMgr::GetPixels( const std::string& sName, int& nWidth, int& nHeight)
{
// ricerca della texture di nome dato
auto iIter = m_umTextData.find( sName) ;
if ( iIter == m_umTextData.end())
return false ;
// restituisco le dimensioni in pixel
nWidth = iIter->second.nWidth ;
nHeight = iIter->second.nHeight ;
return true ;
}
//----------------------------------------------------------------------------
bool
TextureMgr::GetDimensions( const std::string& sName, double& dDimX, double& dDimY)
{
// ricerca della texture di nome dato
auto iIter = m_umTextData.find( sName) ;
if ( iIter == m_umTextData.end())
return false ;
// restituisco le dimensioni fisiche
dDimX = iIter->second.dDimX ;
dDimY = iIter->second.dDimY ;
return true ;
}
//----------------------------------------------------------------------------
bool
TextureMgr::ChangeDimensions( const std::string& sName, double dDimX, double dDimY)